Dumping-cage.



No. 874,9!7. Patented May 28, 19!". W. G ALBERT.

DUIPING GAGE.

(Application filed x. a, 1901. (No Model.) 3 Sheets-Shoat l.

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DUMPING CAGE.

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No. 674,917. Patented May 28, l90l'. I W. G. "ALBERT.

DUIHNG CAGE.

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VVILLIAM G. HALBERT, OF WESTVILLE, ILLINOIS.

DUMPlNG-CAGE.

SPECIFICATION formingpart Of Letters Patent N 0. 674,917, dated May 28,1901. Application filed March 2,1901- Serial ITO-49,534. (N model.)

To (all whom, it may concern:

Be it known that l, WVILLIAM G. HALBERT, of VVestville, in the county ofVermilion and State of Illinois, have invented certain new and useful 1mprovements in Dumping-Cages, of which the following is a specification.

This invention provides a cage that runs freely on its guides withoutany tendency to cramp thereon and that dumps its load automatically whenthe top of the shaft is reached. It is particularly applicable tocoal-hoisting cages, and it is exemplified in the structure hereinafterdescribed.

In the drawings forming part of this specification, Figure 1 is anelevation of a cage embodying my improvements, portions of theshaft-walls being shown in cross-section. Fig. 2 is a plan of the frameof the cage and the tilting platform thereon, the shoes that run on theguidesbeingshownin section. Fig.3isadetail in side elevation,showingthemeans employed to tilt the platform. In this figure the tilting inclinesare shown detached from the shaft-wall, so as to make them moreconspicuous. Fig. 4 is a side elevation illustrative of a tiltingoperation. Fig. 5 is a detail showing an ineffectual attempt to tilt theplatform and illustrating the means used to prevent damage to the cageor the tipple in case the plat-form should not be released previous toencountering the tilting inclines. Fig. 6 is a detail illustrating themeans used to hold the platform from tipping while the cage is travelingto and from the tipple and showing how the platform is released when thetipple is reached.

The walls of the shaft are represented in a general manner at 1, and thevertical guides for the cage are shown at 2. At 3 are shown bars orstrips secured to the walls of the shaft and extended into the paths ofarms on platform-securing levers. The strips 3 are beveled at theirlower ends to form inclined operative surfaces, and they extend parallelwith the guide 2. The upright side bars 4 of the cage constituteelongated shoes, which embrace the sides of the guides for nearly theirentire lengths. The shoes are preferably made each of a pai ofangle-bars, and they are connected at their upper ends with acrossframe, as 5, and at their lower ends with a cross-frame, as 6.

The dump-platform may be constructed in any desirable manner consistentwith its purpose, and it is in this instance representedin a general wayby cross-bars 7 and side bars 9. The platform is tiltable endwise onrocking bearings 8 or their equivalent, and it is supplied with rails10, on which the coal-cars are held in the customary way.

Levers 11 are pivoted at 13 on the sides of the shoes 4 opposite thedischarge end of the platform, and their upper ends are hooked inward,as shown at 12, and adapted to engage the side bars 9 of the tiltingplatform when such platform is in a horizontal position. At the lowerends of the levers triparms 14 extend sidewise in position to strike theinclined surfaces of bars 3 and be turned aside thereby. Brackets 15 areattached to the side bars 9 of the platform in position to strike theshoes when the platform is horizontal and hold the platform againstfurther backward tilt,and when the hooked ends of the trip-levers are inengagement with the platform the platform is effectually held againstforward tilt. Rollers 16 extend sidewise from the forward ends of sidebars 9 of the platform, and inclined tilt-bars 17 are secured to thewalls of the shaft in position to engage the rollers as the cage reachesthe tipple. The tilt-bars are hinged at their upper ends on bolts 18,and at their lower ends they are secured by means of break-pins 19. Thepins are strong enough to cause the platform to tilt whenever thelock-levers are released; but if by any chance the lock-levers shouldretain their engagement with the platform when the rollers engage thetrip-inclines the pins will break and prevent damage to the cage or thetipple. (See Fig. 5.)

The upper ends 18 0f the trip-bars 17 are sufficiently far from thecorner-uprights of the shaft to provide passages for the rollers whenthe platform is completely tilted, so that the cage may rise above theinclined bars, and bars 20 may extend to the c0rner-uprights below thetrip-inclines and aid in righting the platform as the rollers travelbetween the two pairs of inclined bars.

The shoes form long bearings against the guides, as hereinbeforementioned, and they are turned away from the guides gradually at theirends to give them the form of runners. The bearings of the shoes areboth above and below the load, and irregular distribution of the load onthe platform has no material efiect so far as developing frictionbetween the shoes and the guides is concerned.

In operation the cage runs freely up the guides with the platform lockedagainst tilting motion. As the platform nears the tipplc the arms 14strike the inclined ends of stationary bars 3 and carry the hooked ends12 of levers 11 clear of the side bars of the platform, as shown in Fig.6. Next the rollers 16 strike the inclined bars 17 and the platform istilted, as shown in Fig. 4.

I claim 1. A dumping-cage comprising an upper cross frame, a lower crossframe, vertical shoe-bars connecting the lower cross-frame with theupper cross-frame and embracing the guides of the shaft, a tiltingplatform supported on the lower cross-frame, levers pivoted on the shoeson the sides thereof opposite the discharge'end of the platform, suchlevers having hooked ends to engage the platform and also havinglaterally-extended trip-arms, and stationary inclines to engage thetrip-arms of the levers and disengage the levers from the platform.

2. In a dumping-cage, the combination of shoes slidable on theshaft-guides, a platform tiltable between the shoes, brackets on theplatform to strike against the shoes and prevent the platform fromswinging backward- I ward end of the platform and stationary inclines toengage the rollers and tilt the platform.

3. In a dumping-cage the combination of a tiltable platform, releasablelocks to hold the platform horizontal, means for releasing the locks,rollers on the sides of the forward part of the platform and inclinedtrip-bars to engage the rollers, such trip-bars being held in place bybreak-pins, substantially as described.

In testimony whereof I sign my name in the presence of two subscribingwitnesses.

WILLIAM G. I-IALBERT.

Witnesses:

E. R. KNOX, JOHN W. BARGER.

